abby-client/lib/client.js

This is the client library for Greetz's very own A/B testing platform.

const sync = require('./sync');

function generateRandomNumber(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

function getVariation(uuid, experiment){
    let random = generateRandomNumber(0, 100);
    let variation = experiment.variations.filter(variation => {
        return random >= variation.rangeStart && random <= variation.rangeEnd;
    })

    return variation[0].id;
}

function handle(req, res) {
    let availableExperiments = {
        "experiment_split_homepage": "abby_homepage"
    }

    req.experiments = availableExperiments;
};


module.exports = function(/**Configs*/configs){
    if (!configs || typeof configs !== 'object') {
        throw new Error('You should pass config object');
    }
    else if (!configs.tags) {
        throw new Error('You should pass env');
    }
    else if (!configs.apiEndpoint) {
        throw new Error('You should pass API_ENDPOINT');
    }

    handle.ready = () => sync.load(configs);
    return handle;
};